Abstract:
PURPOSE: A gravity type wet-oxidation reactor equipped with a flow guide is provided to activate oxidation by dividing an oxidizing agent into micro bubbles and promoting the mixing of the micro bubbles and sludge. CONSTITUTION: A gravity type wet-oxidation reactor includes a reactor outer tube(110), a reactor inner tube(130), and a flow guide(140). The reactor outer tube is in the form of a pipe and is vertically installed. Both end parts of the reactor outer tube are closed. A sludge discharging pipe(33) is connected to one upper part of the reactor outer tube and discharges oxidized sludge. The upper end part of the reactor inner tube is closed, and the lower end part of the reactor inner tube is opened. A sludge providing pipe(11) is connected to one upper part of the reactor inner tube and moves provided sludge downward. The upper end part of an oxidizing agent providing tube is opened, and the lower end part of the oxidizing agent providing tube is closed. The oxidizing agent providing tube is connected to an oxidizing agent providing pipe(22) and moves provided the oxidizing agent downward. The flow guide is protruded along the outer circumference of the oxidizing agent providing tube.
Abstract:
PURPOSE: A dynamic loading device is provided to load a moving load and cyclic load at the same time using a horizontal moving unit and vibration unit so that reliability with respect to the uniformity of a concrete road or asphalt-paved road can be enhanced. CONSTITUTION: A dynamic loading device comprises a frame(10), a hydraulic unit(20), a pressing unit(30), and a controller. The frame is erectly formed. The hydraulic unit is installed to be moved back and forth or to left and right sides of the frame. The hydraulic unit imparts pressure toward the ground. The pressing unit is joined to the hydraulic unit and arranged to be closely adhered to the ground. The pressing unit presses the ground with the imparted pressure from the hydraulic unit so that a simulated load is loaded. The controller confirms the loading load on the corresponding surface where the load loading is performed while controlling the pressure of the hydraulic unit.
Abstract:
PURPOSE: A window system having a built-in blind with ventilation and solar power generation functions is provided to prevent dew condensation by efficiently guiding the circulation of air. CONSTITUTION: A window system(100) having a built-in blind with ventilation and solar power generation functions comprises a detection sensor unit(110), a blind unit(120), a drive unit(130), a ventilation unit(140), a control unit(150), and a condenser unit(160). The detection sensor unit measures solar intensity and altitude and the internal temperature of a window. The blind unit has a light shelf slat(122) and a photovoltaic slat(124). The drive unit controls the vertical movement and angle of the photovoltaic slat. The ventilation unit has outer and inner ventilation units and an opening and closing unit. The control unit controls the operation of the drive unit. The condenser unit receives power generated from the photovoltaic slat.
Abstract:
PURPOSE: A manufacturing method of an ultrahigh performance concrete block for preventing shrinkage strain through match casting is provided to integrally assemble UHPC blocks in a bridge axis direction. CONSTITUTION: A manufacturing method of an ultrahigh performance concrete block for preventing shrinkage strain through match casting is as follows. Pre-cast UHPC blocks(1a) are located at the inside a high-temperature chamber(20). The shrunk pre-cast UHPC blocks are re-expanded in an original size by increasing the internal temperature of the chamber. Shear keys or insertion grooves are formed on the outer surfaces of the pre-cast UHPC blocks. The outer surfaces of the pre-cast UHPC blocks are exposed to the outside the high-temperature chamber. A form(200) for manufacturing a post-cast UHPC block is adhered to the pre-cast UHPC blocks. The outer surfaces of the pre-cast UHPC blocks close the opened part of the form. Post-cast UHPC blocks are formed by placing UHPC in the form.
Abstract:
PURPOSE: An FRP concrete composite pile connection apparatus is provided to connect FRP concrete composite piles with high strength and to prevent loss of parts at the joints of the FRP concrete composite piles. CONSTITUTION: An FRP concrete composite pile connection apparatus comprises an upper connection member(110), a lower connection member(120), and a coupler(130). The upper connection member is integrally formed on the bottom of an upper FRP concrete composite pile(P1). The lower connection member is integrally formed on the top of a lower FRP concrete composite pile(P2). The coupler is bonded to the upper and the lower connection member with an adhesive.
Abstract:
PURPOSE: A composite beam for reducing floor height without separate refractory coating and a beam-slab bonding structure using the same are provided to remove a need for separate refractory coating in a state that a lower flange is completely buried at concrete for composition. CONSTITUTION: A composite beam for reducing floor height without separate refractory coating comprises a steel beam(10), a mold board(15), and concrete. The steel beam comprises a lower horizontal plate(11), a central vertical plate(12), an upper horizontal plate(13), and a wing plate(14). The first three plates make an H-shaped section. The mold board is coupled to the wing plate on the lower part of the steel beam. The concrete is charged in a space surrounded by the wing plate and the mold plate and is integrated with the steel beam.
Abstract:
PURPOSE: A sensor node and a method for configuring a sensor node are provided to guarantee for sensor node hardware configuration required according to a condition and a situation. CONSTITUTION: When shape setting information for configuration of an in-module sensor is changed, a sensor module transmits a sensor setup signal to a node module(S504). The sensor module receives a control signal corresponding to the sensor setup signal from the node module(S505). The sensor module sets an embedded sensor(S506). After the set embedded sensor is activated, the sensor module transmits a completion signal to the node module(S507,S508).
Abstract:
PURPOSE: A hot water distributing system with a bathroom temperature control valve is provided to automatically control the opening degree of a valve according to the temperature of the hot water by an automatic flow control valve installed in a hot water path between a hot water return unit and the bathroom. CONSTITUTION: A hot water distributing system with a bathroom temperature control valve comprises a water supply pipe(100), a hot water supply unit(200), a hot water return unit(300), a plurality of automatic temperature controllers(500), a water return pipe(400) and an automatic flow control valve(44). The hot water supply unit supplies the hot water receiving from the water supply pipe to the bathroom and each heating space through a plurality of supply branch pipes(210). The hot water return unit collects the hot water through a bathroom branch pipe(320) and a plurality of return branch pipes(310). The automatic temperature controllers comprise an indoor temperature controller(510), a valve controller(520), a valve and a driver(530). The indoor temperature controller is installed in each heating space except for the bathroom. The valve and the driver are installed in the return branch pipes. According to the indoor temperature controller, the valve controller controls the valve and the driver. The water return pipe re-circulates the hot water collected in the hot water return unit to the machine room of a central heating system or an individual boiler. The automatic flow control valve automatically controls the opened degree of the valve according to the temperature of the hot water by a shape memory alloy device or an electronic valve driving device.
Abstract:
PURPOSE: A measurement system for velocity of fluid and a method of the same is provided to determine the overall flow of water by monitoring the difference between a central part and an edge part. CONSTITUTION: A plurality of floats(100) transmit a GPS signal in real time. A receiving station(200) receives the GPS signal from the floats in real time. The plural floats are divided into at least two sets(100a,100b,100c) according to a communication frequency band and use one set in the same communications frequency band to sequentially transmit the GPS signal.
Abstract:
PURPOSE: An external window structure of a building having a guard rail made of a laminated glass is provided to prevent the falling accident of an occupant by using a laminated glass as a guard rail. CONSTITUTION: An external window structure of a building having a guard rail made of a laminated glass is composed of an upper frame(10), an intermediate frame(11), a lower frame(12), and an outer fixed window. The upper frame, the intermediate frame, and the lower frame are arranged horizontally. The upper frame, the intermediate frame, and the lower frame are combined to the edge of the outer fixed window made of a glass. The outer fixed window is installed between the intermediate frame and the lower frame. The outer fixed window is made of the laminated glass having the contacted structure by interposing a transparent film between plate glasses.